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A270602 Number of nXnXn triangular 0..4 arrays with some element plus some adjacent element totalling 4+1 or 4-1 exactly once. 0

%I #3 Mar 20 2016 10:53:17

%S 0,36,1716,171576,46957788,38923001616,98204118828408,

%T 744477422244654948,16863964449356423397084,

%U 1140493290200331813320727636,230373612505462103444572129923504

%N Number of nXnXn triangular 0..4 arrays with some element plus some adjacent element totalling 4+1 or 4-1 exactly once.

%C Column 4 of A270606.

%e Some solutions for n=4

%e .....0........1........0........0........3........4........4........0

%e ....4.0......1.0......0.2......0.1......1.1......0.0......0.0......0.2

%e ...2.4.4....1.3.1....4.2.0....4.0.3....3.3.4....0.0.0....0.0.2....0.0.2

%e ..3.4.2.0..1.3.1.3..4.0.1.0..4.0.1.3..4.4.3.3..1.2.2.2..0.1.1.0..1.2.0.2

%Y Cf. A270606.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 20 2016

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)